Efficient high-quality picosecond Nd:YVO_4bounce laser system

High average power, diffraction-limited picosecond output from a sapphire face-cooled Nd:YVO_4 slab amplifier

“…As mentioned in our previous publications [23,27,29], the temperature distribution along the y axis of the amplifier has a perfect parabolic profile, thereby yielding only lens effects. In contrast, the temperature distribution along the x axis of the amplifier (horizontal distribution) is given by a higher order power series, causing critical thermal distortion in the amplifier.…”

“…The use of a thin slab with smaller volume for a given surface area has the potential to improve laser performance, including beam quality and optical efficiency [28]. Recently, we and our co-workers have demonstrated near-diffraction-limited (M 2 ∼ 1.3) picosecond output from a Nd:YVO 4 thin slab (0.8 mm) bounce amplifier at high optical efficiency (∼50%) [29].…”

High energy Yb:YAG active mirror laser system for transform limited pulses bridging the picosecond gap

“…High average‐power Nd:YVO 4 oscillators and amplifiers generate pulses with a duration of multiple 10 ps depending on the spectral width of the gain material , but mostly lacking transform limitation. Recently, a sub‐20 ps MOPA (Master Oscillator Power Amplifier) system was presented where spectral compression and pulse‐width tunability was induced by self‐phase modulation (SPM) at a negative pre‐chirp in an optical fiber .…”

Compact diode-pumped nanosecond Nd:YVO4grazing-incidence slab amplifier

“…What's more, high efficiency output of diode-pumped grazing-incidence amplifiers can be achieved by compact structure without use of traditional rod amplifier geometry. As a pump source, high power laser diode single bar or stack can be used in grazing-incidence amplifiers without radiation delivery fibers [7][8][9][10] .…”